Hytera RD982 - Page 226

5 5
4 4
3 3
2 2
1 1
D D C C B B A A
10dBm
73.35MHz
5VA
9V1A_FGU
9V1A
5VA
RX_LO
IF_OUT
TV
L404 15nH L404 15nH
C456 470p C456 470p
L423 0 L423 0
C422
3.6pF
C422
3.6pF
R431
82
R431
82
C418 3pF C418 3pF
C488
100pF
C488
100pF
R418 100K R418 100K
C430 100pF C430 100pF
R447
4.7K
R447
4.7K
R442
820
R442
820
L419 18n L419 18n
C474 0.1u C474 0.1u
R468
56
R468
56
R406
100K
R406
100K
R427
0
R427
0
C457 0.01u C457 0.01u
C428 3.6pF C428 3.6pF
D413D413
12
L410
4T
L410
4T
L405 15nH L405 15nH
C471 12p C471 12p
C459 NC C459 NC
R424
100
R424
100
L425
330nH
L425
330nH
D420D420
12
C436 6pF C436 6pF
C423
100pF
C423
100pF
C401 0.1uF C401 0.1uF
R437
82
R437
82
C460 3p C460 3p
C412 0.01uF C412 0.01uF
C424
100pF
C424
100pF
D403D403
1 2
R448 30k R448 30k
C432 10pF C432 10pF
R413 100K R413 100K
TP411
MIXER_IN
TP411
MIXER_IN
1
L407 4T L407 4T
C458
470p
C458
470p
L420 18n L420 18n
L433
0
L433
0
C448
10pF
C448
10pF
D419D419
12
C489
NC
C489
NC
C462 3.6p C462 3.6p
L426
820n
L426
820n
C407
1000pF
C407
1000pF
C439 12pF C439 12pF
R407
100K
R407
100K
C466 220p C466 220p
R419
12
R419
12
L422
BLM18AG601SN1
L422
BLM18AG601SN1
1 2
L424
0.1uF
L424
0.1uF
C485
1000pF
C485
1000pF
C421 3.6pF C421 3.6pF
C429 3.6pF C429 3.6pF
L401
BLM18AG601SN1
L401
BLM18AG601SN1
12
C425
100pF
C425
100pF
TP410 GND TP410 GND
1
R405 100K R405 100K
L427 47nH L427 47nH
L430
15pF
L430
15pF
C473 0.1u C473 0.1u
C446
10pF
C446
10pF
R430 1.2K R430 1.2K
C496 NC C496 NC
R404
10K
R404
10K
D416D416
12
L418
33n
L418
33n
C470 12p C470 12p
D411D411
12
R457
100k
R457
100k
C476 9pF C476 9pF
R45020K R45020K
C415
8pF
C415
8pF
C434
13pF
C434
13pF
L403
150nH
L403
150nH
D418D418
1 2
C467
100p
C467
100p
C420
15pF
C420
15pF
R416 100K R416 100K
GNDGND
IN
OUT
Z401 73.35MHZ
GNDGND
IN
OUT
Z401 73.35MHZ
1
2 3
4
5 6
R417 100K R417 100K
R444 5.1K R444 5.1K
R445
330
R445
330
L402
BLM18AG601SN1
L402
BLM18AG601SN1
1 2
TP412 GND TP412 GND
1
C417 4pF C417 4pF
J401 ANT J401 ANT
1 2 3 4 5
R455
12
R455
12
R440
820
R440
820
C468
100p
C468
100p
D426D426
12
C441 3pF C441 3pF
D409D409
1 2
C447
10pF
C447
10pF
C472 6p C472 6p
J402 ANT J402 ANT
1 2 3 4 5
C438
10pF
C438
10pF
R422 390 R422 390
C479
330nH
C479
330nH
C494 47pF C494 47pF
R446 51 R446 51
C405
0.01u
C405
0.01u
R412 100K R412 100K
L414
4T
L414
4T
R425
1.2K
R425
1.2K
C440 13pF C440 13pF
D425D425
12
R432 10p R432 10p
L428
47n
L428
47n
D414D414
12
R453
0
R453
0
Q403 PBR941 Q403 PBR941
1
32
C435
4pF
C435
4pF
C410 220pF C410 220pF
R438
82
R438
82
C469 6p C469 6p
D401D401
1 2
C465
27p
C465
27p
L411
4T
L411
4T
R459
100k
R459
100k
R443 820 R443 820
D407D407
1 2
R411
180
R411
180
C413
1000pF
C413
1000pF
Q401Q401
2
3
4
1
R452
56K
R452
56K
L408 4T L408 4T
R429
5.6
R429
5.6
C433
12pF
C433
12pF
L431 NC L431 NC
C409
0.1uF
C409
0.1uF
R414 100K R414 100K
R433 NC R433 NC
C492 NC C492 NC
R456
100k
R456
100k
C426
10pF
C426
10pF
D408
HSM88AS
D408
HSM88AS
3
2
1
D424D424
1 2
C437 NC C437 NC
R436
10
R436
10
D417D417
12
D412D412
1 2
R451
30k
R451
30k
L409
4T
L409
4T
-
+
+
-
B
A
A OUT
B OUT
A- A+
B+
B-
V+
V-
U401
NJM2904M
-
+
+
-
B
A
A OUT
B OUT
A- A+
B+
B-
V+
V-
U401
NJM2904M
1 2 3 45
6 7 8
C487 18pF C487 18pF
L421 18n L421 18n
L413
4T
L413
4T
C444
10pF
C444
10pF
C482 0.1u C482 0.1u
C445
10pF
C445
10pF
L412 18nH L412 18nH
D423D423
12
C443 6pF C443 6pF
C486
100pF
C486
100pF
Q402 PBR941 Q402 PBR941
1
32
C461 3p C461 3p
C442 6pF C442 6pF
R458
100k
R458
100k
R420
0
R420
0
C493 100pF C493 100pF
U402U402
N/A
1
RF_IN
2
N/A
3
N/A
4
N/A
5
N/A
6
RF_OUT
7
GND
9
N/A
8
U403
SYM-25DHW+
U403
SYM-25DHW+
LO
1
IF
2
RF
3
C408
1000pF
C408
1000pF
R454 100 R454 100
C491 NC C491 NC
TP413 RF_IN TP413 RF_IN
1
C477
NC
C477
NC
C450
NC
C450
NC
C481 12pF C481 12pF
C416
6pF
C416
6pF
D415D415
1 2
D404
HSM88AS
D404
HSM88AS
3
2
1
D410D410
12
R409
0
R409
0
L406 4T L406 4T
C483
0.1u
C483
0.1u
D422D422
12
D402D402
1 2
C464 180p C464 180p
C402
220p
C402
220p
D406D406
1 2
R426 3.6K R426 3.6K
R435
820
R435
820
R423 100k R423 100k
C499 1000pF C499 1000pF
C427 15pF C427 15pF
L417
BLM18AG601SN1
L417
BLM18AG601SN1
12
R434
820
R434
820
R428
100
R428
100
C490 NC C490 NC
C449
10pF
C449
10pF
C431 3pF C431 3pF
C480
NC
C480
NC
D421D421
1 2
R439 330 R439 330
R421 390 R421 390
R410
100K
R410
100K
R449 51 R449 51
C419 NC C419 NC
C411 0.1uF C411 0.1uF
R460
100k
R460
100k
R441 5.6 R441 5.6
L416
1uH
L416
1uH
C475 0.1u C475 0.1u
L429
180nH
L429
180nH
L415
4T
L415
4T
D405D405
1 2
RD98X Schematic Diagram (RX_Front-end Circuit)
223